With her new movie, Duplicity, hitting theaters this Friday (March 20), Julia Roberts has been on-the-go promoting the flick - making a stop at the “Late Show with David Letterman" last night (March 17).

The 41-year-old actress looked casual cute in a long black button down shirt worn over jeans and paired with aviator sunglasses, happily stopping and sign autographs before making her way into the Ed Sullivan Theatre.